Fire gave birth to earth; earth gave birth to metal.
This was the Taoist Five Elements Cycle Theory from Blue Star in his previous life. According to this theory, Uchiha Yu had begun with fire, and after Foundation Establishment, earth had naturally followed.
Since the earlier stages had truly worked, his next breakthrough would surely require metal. But the Ninja World had none, and this had become a major problem plaguing Uchiha Yu, as well as the root cause of his recent frequent inner demons.
When one was tense, one was prone to mental problems.
If he had not possessed methods to resolve his emotional state and directly eliminate psychological illnesses, Uchiha Yu would probably have come down with something high-end like depression or PTSD.
Today, under his body's persuasion, he ate a metal shard containing strange Chakra. It replenished some indescribable element, triggering a reaction from Natural Energy, and his Foundation Establishment Stage officially entered its next phase.
Wind—formless yet tangible wind—began to surge. Wind-aspected Natural Energy between heaven and earth was drawn in, repelling every other attribute as pure, singular wind-aspected Natural Energy poured through Uchiha Yu's mouth and nose, gathering in his lungs.
Metal transformed into wind.
It was actually metal transforming into wind. That made no sense, absolutely no sense!
But metaphysics and science were really the same thing. Verifiable facts always outweighed theory, so there was nothing more to say.
The Five Elements theory from his previous life could be discarded. It did not match the facts in this truly extraordinary world, which meant the theory itself was flawed.
Once wind-aspected Natural Energy had been naturally introduced, Uchiha Yu's lungs were immediately strengthened beyond anything before. The sound of wind in his breaths resembled the roar of tigers and lions, brimming with intimidation.
Miwa Masayo